Choose the type of installation that you want to perform:
Install Enterprise Server on a system on which it is not yet installed.
Upgrade a previous version of Enterprise Server to Enterprise Server 9.
Upgrade an existing installation of Enterprise Server to a higher version (for instance to version 9.0.x, 9.1.x, etc).
Additional Enterprise Servers
Add additional Enterprise Server instances to the current installation, for instance to create Servers in a different language or using different terminologies.